FILE - In this Oct. 24, 2011 file photo, cars are parked on an overfly on a flooded street in Bangkok, Thailand. Sea level rise projections show Bangkok could be at risk of inundation in 100 years unless preventive measures are taken. But when the capital and its outskirts were affected in 2011 by the worst flooding in half-a century, the immediate trigger was water run-off from northern provinces, where dams failed to contain unusually heavy rains. (AP Photo/Apichart Weerawong, File)

FILE - In this Oct. 24, 2011 file photo, cars are parked on an overfly on a flooded street in Bangkok, Thailand. Sea level rise projections show Bangkok could be at risk of inundation in 100 years unless preventive measures are taken. But when the capital and its outskirts were affected in 2011 by the worst flooding in half-a century, the immediate trigger was water run-off from northern provinces, where dams failed to contain unusually heavy rains. (AP Photo/Apichart Weerawong, File)